CN201396401Y - Traveling planetary speed reducer - Google Patents
Traveling planetary speed reducer Download PDFInfo
- Publication number
- CN201396401Y CN201396401Y CN2009201496691U CN200920149669U CN201396401Y CN 201396401 Y CN201396401 Y CN 201396401Y CN 2009201496691 U CN2009201496691 U CN 2009201496691U CN 200920149669 U CN200920149669 U CN 200920149669U CN 201396401 Y CN201396401 Y CN 201396401Y
- Authority
- CN
- China
- Prior art keywords
- gear
- housing
- speed reducer
- bearing
- planet carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a traveling planetary speed reducer, belongs to the excavator planetary speed reducer technology field. The speed reducer comprises a housing assembly, a planet carrier assembly, a front cover and a first level sun gear. The speed reducer is characterized in that: a second level planetary speed reducing mechanism is composed by the housing assembly and the planet carrier assembly; a pair of corner angular contact bearings are mounted between the housing and the ring gear; and double floating sealing rings are mounted on the combination portion of the housing and the ring gear. The bearing capacity is greatly improved by adopting a pair of corner angular contact bearings to bear the radial load and bidirectional axial load on the housing; oil leakage in workingis well prevented by adopting the double floating sealing rings structure. The utility model adds a second level planetary speed reducing mechanism, applies the internal/external gearing of a plurality of planetary gears, realizes power dividing, achieves the speed reducing mechanism with the advantages of compact structure, small volume, high efficiency, large reduction ratio, high bearing capacity, low heat production, low power loss and reliable work.
Description
Technical field
The present invention is a kind of walking planetary speed reducer, belongs to excavator planetary speed reducer technical field.
Technical background
As everyone knows, the excavator walking device great majority are to adopt secondary cylindrical gear reducer structure at present, also have the small part excavator walking device to adopt the one-level planetary gear speed reducing mechanism.Above line is walked the planet reducing gear and is had all that volume is big, efficient is low, reduction speed ratio is little and output torque is little, the problem of bearing capacity difference.
Summary of the invention
In order to overcome the deficiency of existing walking planetary speed reducer, purpose of the present invention just provides a kind of walking planetary speed reducer that increases the secondary planet reducing gear.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of walking planetary speed reducer, comprise housing assembly, planet carrier assembly parts, protecgulum, one-level sun gear,
Housing assembly is made up of housing, outside framework oil seal, secondary planetary gear, secondary bearing packing ring, bearing inner race, circlip for shaft, bearing cover, ring gear, circlip for shaft, floating sealing ring respectively.Four secondary planetary gears are fixed on four pillars of housing with secondary bearing packing ring, circlip for shaft and bearing cover respectively; Needle roller and bearing inner race are housed in the middle of planetary pinion and the pillar; Between housing and ring gear, a pair of angular contact bearing is installed; In the connecting part of housing and ring gear, two floating sealing rings are installed.
The planet carrier assembly parts is made up of primary planet pinion, one-level needle bearing, circlip for shaft, bearing washer, planet carrier, secondary sun gear, circlip for shaft, gear shaft, elastic cylindrical pin respectively.Gear shaft one end is fixed in three holes of planet carrier with elastic cylindrical pin.Primary planet pinion then is fixed on the other end with circlip for shaft, bearing washer and is equipped with on the gear shaft of one-level needle bearing.The secondary sun gear is fixed in the splined hole of planet carrier with circlip for shaft.
Planet carrier assembly parts and one-level sun gear are housed in the utility model housing assembly.Driving speed reducer adopts two row planetary gear set combined speed reducers, is that driving link, gear ring are driven member with the sun gear.Rotatablely moving of main frame oil hydraulic motor axle is sent on the one-level sun gear that is connected by splined shaft, three primary planet pinions and the engagement of one-level sun gear are rotated, by driving the rotation of ring gear, drive the driving of crawler driving whell again, realize that the one-level of speed reducer is slowed down with the engagement of ring gear.Primary planet pinion is installed on the planet carrier by gear shaft, and the secondary sun gear is connected with spline with planet carrier; Thereby the engagement of primary planet pinion and ring gear drives planet carrier and rotates the rotation that drives the secondary sun gear, and secondary planetary gear again with the ring gear engagement, drives the driving of crawler driving whell by meshing with the secondary sun gear, realizes the double reduction of speed reducer.
The beneficial effects of the utility model are: the radial load and the bi-directional axial load that have adopted a pair of angular contact bearing carrying housing place to produce, and bearing capacity is strengthened greatly; Two floating sealing ring structures have been adopted, the fine oil impregnate phenomenon that has prevented in the work; Increased the secondary planet reducing gear newly, used outer gearing in a plurality of planetary pinions, realized power dividing, made that reducing gear has compact structure, volume is little, efficient is high, reduction speed ratio is big, bearing capacity is strong, heating value and power loss is little, reliable operation.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the general assembly drawing of the utility model walking planetary speed reducer
Fig. 2 is the one-level planet supporting disk component drawings of the utility model walking planetary speed reducer
Fig. 3 is the secondary planet supporting disk component drawings of walking planetary speed reducer of the present utility model
Among Fig. 1-3,1. one-level sun gear, 2. screw plug, 3. seal ring, 4. piston ring, 5. protecgulum, 6. screw plug, 7. seal ring, 8. hole Steel Cable Baffle Ring, 9. seal ring, 10. planet carrier assembly parts, 11. packing rings, 12. housing assembly, 13. primary planet pinions, 14. bearing washers, 15. planet carrier, 16. secondary sun gears, 17. gear shafts, 18. elastic cylindrical pin, 19. housings, 20. secondary planetary gears, 21. secondary bearing packing ring, 22. circlip for shaft, 23. bearing covers, 24. ring gears, 25. angular contact bearing, 26. pairs of floating sealing rings
Embodiment
Embodiment one: the utility model embodiment is R9009 walking planetary speed reducer, referring to Fig. 1-2, the utility model comprises housing assembly (12), planet carrier assembly parts (10), protecgulum (5), one-level sun gear (1), and planet carrier assembly parts (10) is made up of primary planet pinion (13), bearing washer (14), planet carrier (15), secondary sun gear (16), gear shaft (17), elastic cylindrical pin (18) etc.Primary planet pinion (13) is contained on the gear shaft (17); Three gear shafts (17) are fixed in three holes of planet carrier (15) with elastic cylindrical pin (18); Bearing washer (14) is used to adjust the height of primary planet pinion (13).Housing assembly (12) is made up of with elastic washer (22), bearing cover (23), ring gear (24), angular contact bearing (25), two floating sealing ring (26) housing (19), secondary planetary gear (20), secondary bearing packing ring (21), axle respectively.Secondary planetary gear (20) is contained on four pillars of housing (19); Secondary bearing packing ring (21) is contained in the following corrective action of secondary planetary gear (20); Ring gear (24) is fixed on the housing (19) by a pair of angular contact bearing (25).Two floating sealing ring (26) sealing structures in lower end.
Rotatablely moving of main frame oil hydraulic motor axle is sent on the one-level sun gear (1) that is connected by splined shaft, three primary planet pinions (13) rotate with one-level sun gear (1) engagement, again by driving the rotation of ring gear (24) with the engagement of ring gear (24), drive the driving of crawler driving whell, realize that the one-level of speed reducer is slowed down.Primary planet pinion (13) is installed on the planet carrier (15) by gear shaft, and secondary sun gear (16) is connected with spline with planet carrier (15); Primary planet pinion (13) drives planet carrier (15) thereby the rotation of rotation drive secondary sun gear (16) with the engagement of ring gear (24), and secondary planetary gear (20) is by meshing with secondary sun gear (16), mesh with ring gear (24) again, drive the driving of crawler driving whell, realize the double reduction of speed reducer.
Claims (3)
1, a kind of walking planetary speed reducer comprises housing assembly (12), planet carrier assembly parts (10), protecgulum (5), one-level sun gear (1), it is characterized in that:
(1) housing assembly (12) is formed the secondary planet reducing gear with planet carrier assembly parts (10),
(2) between housing (19) and ring gear (24), a pair of angular contact bearing (25) is installed;
(3), two floating sealing rings (26) are installed in the connecting part of housing (19) and ring gear (24).
2, a kind of walking planetary speed reducer according to claim 1, it is characterized in that: housing assembly (12) is made up of with elastic washer (22), bearing cover (23), ring gear (24), angular contact bearing (25), two floating sealing ring (26) housing (19), secondary planetary gear (20), secondary bearing packing ring (21), axle respectively, and four secondary planetary gears (20) use secondary bearing packing ring (21), circlip for shaft (22) and bearing cover (23) to be fixed on four pillars of housing (19) respectively; Needle roller and bearing inner race are housed in the middle of planetary pinion and the pillar.
3, a kind of walking planetary speed reducer according to claim 1, it is characterized in that: planet carrier assembly parts (10) is made up of primary planet pinion (13), bearing washer (14), planet carrier (15), secondary sun gear (16), gear shaft (17), elastic cylindrical pin (18) etc., and primary planet pinion (13) is contained on the gear shaft (17); Three gear shafts (17) are fixed in three holes of planet carrier (15) with elastic cylindrical pin (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201496691U CN201396401Y (en) | 2009-04-18 | 2009-04-18 | Traveling planetary speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201496691U CN201396401Y (en) | 2009-04-18 | 2009-04-18 | Traveling planetary speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396401Y true CN201396401Y (en) | 2010-02-03 |
Family
ID=41618910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201496691U Expired - Fee Related CN201396401Y (en) | 2009-04-18 | 2009-04-18 | Traveling planetary speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396401Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864786A (en) * | 2010-06-21 | 2010-10-20 | 三一重机有限公司 | Driving speed reducer for hydraulic excavator |
| CN104879450A (en) * | 2015-05-27 | 2015-09-02 | 贾金伟 | Speed reducer special for excavator walking |
-
2009
- 2009-04-18 CN CN2009201496691U patent/CN201396401Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864786A (en) * | 2010-06-21 | 2010-10-20 | 三一重机有限公司 | Driving speed reducer for hydraulic excavator |
| CN104879450A (en) * | 2015-05-27 | 2015-09-02 | 贾金伟 | Speed reducer special for excavator walking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202431843U (en) | Primary bevel gear rectangular axis input planetary gearbox | |
| CN203335743U (en) | Double helical tooth planetary reducer | |
| CN101338810A (en) | Dual-axle input perpendicular dual-axle output speed reducer | |
| CN203374737U (en) | Closed planetary gear reducer | |
| CN101649816A (en) | Wind-power generating yaw speed reducer | |
| CN101337619A (en) | Exterior-mounted star wheel motorized driving pulley | |
| CN203146709U (en) | Spiral bevel gear input planetary gear case | |
| CN201420836Y (en) | Reducer with compound structure of similar cycloid gears and planetary gear | |
| CN202746502U (en) | Rotary planetary reducer of mining excavator | |
| CN102328885A (en) | Two-speed planetary speed reducer device | |
| CN201475266U (en) | Novel planet gear speed reducer of efficient rolling and transmission | |
| CN204647162U (en) | One-level cone tooth input planet gear case with pressure lubrication | |
| CN203585256U (en) | Planetary differential speed reducer for crane | |
| CN102417133A (en) | Elevator traction machine | |
| CN201396401Y (en) | Traveling planetary speed reducer | |
| CN201751629U (en) | Planetary reduction gear with herringbone teeth | |
| CN102562055A (en) | Rocker arm and roller transmission structure of roller coal-mining machine | |
| CN201241940Y (en) | Double-shaft output reduction gear | |
| CN201381525Y (en) | Rotating planetary reducer | |
| CN201902513U (en) | Walking planetary speed reducer for mining excavator | |
| CN102562955B (en) | Novel wheel hub reduction mechanism with bevel gears | |
| CN202414935U (en) | Elevator traction machine | |
| CN201884568U (en) | Novel planetary gear reducer | |
| CN201915958U (en) | Rocker drum transmission structure of drum shearer | |
| CN202484211U (en) | Planetary reducer capable of transmitting hydraulic motor power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20140418 |